<template>
  <div class="article-detail__container">
    <!-- Header 区域 -->
    <van-nav-bar fixed title="文章详情" left-arrow @click-left="$router.back()" />

    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{artObj.title}}</h1>

      <!-- 用户信息 -->
      <van-cell
      center
      :title="artObj.aut_name"
      :label="$timeAgo(artObj.pubdate)"
      >
        <template #icon>
          <img
          :src="artObj.aut_photo"
          :alt="artObj.aut_name"
          class="avatar">
        </template>
        <template #default>
          <div>
            <van-button
            v-if="artObj.is_followed"
            type="info"
            size="mini"
            @click="followedFn"
            >已关注</van-button>
            <van-button
            v-else
            icon="plus"
            type="info"
            size="mini"
            plain
            @click="followedFn"
            >关注</van-button>
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="artObj.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button
        v-if="artObj.attitude === 1"
        icon="good-job"
        type="danger"
        size="small"
        @click="loveFn"
        >已点赞</van-button>

        <van-button
        v-else
        icon="good-job-o"
        type="danger"
        plain
        size="small"
        @click="loveFn"
        >点赞</van-button>
      </div>
    </div>
    <!-- 文章评论区域 -->
    <CommentList></CommentList>
  </div>
</template>

<script>
import CommentList from './CommentList.vue'
import {
  getArticleDetail, followedUserAPI, unFollowedUserAPI, articleLikeAPI,
  articleDisLikeAPI
} from '@/api/article'
export default {
  name: 'articleId',
  components: {
    CommentList
  },
  data () {
    return {
      artObj: {} // 文章详情
    }
  },
  async created () {
    const res = await getArticleDetail({
      id: this.$route.query.art_id
    })
    console.log(res)
    this.artObj = res.data.data
  },
  methods: {
    // 关注和取关
    async followedFn () {
      try {
        this.artObj.is_followed ? await unFollowedUserAPI({
          autId: this.artObj.aut_id
        }) : await followedUserAPI({
          autId: this.artObj.aut_id
        })
        // 同步数据层
        this.artObj.is_followed = !this.artObj.is_followed
        // 关注成功提示信息
        this.$toast.success(this.artObj.is_followed ? '关注成功' : '取关成功')
      } catch (e) {
        this.$toast.fail(this.artObj.is_followed ? '取消关注' : '关注出错')
      }
    },
    // 点赞和取消点赞
    async loveFn () {
      try {
        this.artObj.attitude === 1 ? await articleDisLikeAPI({
          artId: this.artObj.art_id
        }) : await articleLikeAPI({
          artId: this.artObj.art_id
        })
        // 同步到数据层
        this.artObj.attitude = this.artObj.attitude === 1 ? -1 : 1

        this.$toast.success(this.artObj.attitude === 1 ? '点赞成功' : '取赞成功')
      } catch (e) {
        this.$toast.fail(this.artObj.attitude === 1 ? '点赞出错' : '取赞出错')
      }
    }
  }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
      /deep/ img{
        width: 100%;
      }
      /deep/ pre {
          white-space: pre-wrap;
          word-wrap: break-word;
      }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>
